EP1238198B1 - Insert and method of installation thereof - Google Patents
Insert and method of installation thereof Download PDFInfo
- Publication number
- EP1238198B1 EP1238198B1 EP00981483A EP00981483A EP1238198B1 EP 1238198 B1 EP1238198 B1 EP 1238198B1 EP 00981483 A EP00981483 A EP 00981483A EP 00981483 A EP00981483 A EP 00981483A EP 1238198 B1 EP1238198 B1 EP 1238198B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert
- receptacle
- body portion
- workpiece
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009434 installation Methods 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 9
- 238000010079 rubber tapping Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims 2
- 239000000463 material Substances 0.000 description 8
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000000750 progressive effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B29/00—Screwed connection with deformation of nut or auxiliary member while fastening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
- F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
- F16B37/065—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting by deforming the material of the nut
- F16B37/067—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting by deforming the material of the nut the material of the nut being deformed by a threaded member generating axial movement of the threaded part of the nut, e.g. blind rivet type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
- B21J15/04—Riveting hollow rivets mechanically
- B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
- B21J15/32—Devices for inserting or holding rivets in position with or without feeding arrangements
- B21J15/34—Devices for inserting or holding rivets in position with or without feeding arrangements for installing multiple-type tubular rivets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
- Y10T29/49943—Riveting
Definitions
- the invention relates to an insert for installation in a relatively thin or weak workpiece to provide an anchor receptacle for a self-tapping screw or the like.
- Self-tapping screws are widely used in industry as providing a means of securing together two components which is inexpensive in respect of both manufacturing cost and installation time.
- their use has a number of disadvantages, stemming from the material or receptacle into which they are inserted.
- a grommet or insert of plastics material (e.g. nylon) is sometimes used as a receptacle for a self-tapping screw.
- plastics material e.g. nylon
- plastics material is relatively weak, it requires a long length of screw engagement to provide enough strength to create sufficient margin between the screw-engagement torque and the thread strip-out torque so as to enable adequate control of the operation in a practical industrial environment, such as a car assembly line.
- the long length of the screw engagement produces a large protrusion on the rear or blind side of the workpiece, which may be awkward or dangerous in the use of the assembled product. The longer screw also takes more time to instal.
- the insert or anchor is of totally different material to the workpiece (e.g. plastics as against steel), ultimate scrapping of the assembled product (e.g. a car body) makes it difficult to recover both materials. Plastics components are usually burnt off and the material not recovered.
- a blind threaded insert such as is widely known and available in many countries under the name AVDEL THIN SHEET NUTSERT (Registered Trade Marks) in conjunction with a machine screw or bolt.
- This can have drawbacks under production-line conditions where speed of operation is under pressure, such as difficulty of engaging threads, leading to cross-threading.
- speed of operation is under pressure
- the paint can enter the insert and jam the threads thus preventing proper engagement of the screw.
- One of the aims of the present invention is to provides an insert which overcomes these practical disadvantages of the prior art.
- the invention is defined in the accompanying claims.
- Figs. 1A & 2A are elevations of two slightly different forms of insert
- Figs. 1B & 2B are underplan views in the direction of the arrows IB & IIB of Figs. 1A & 2A
- Figs. 3, 4 & 5 are sections on the lines III-III, IV-IV and V-V of Figs. 1A & 2A.
- Figs. 1A & 2A the walls of the bore are indicated in phantom.
- the first example insert 11 shown in Figs. 1, 3 & 4 is a unitary structure of steel of generally tubular form with a through bore 13. It comprises a body portion 14 formed integrally with a radially enlarged flange-like head 15 at one end and a receptacle portion 16 at the other.
- the exterior 17 and interior 18 are both substantially square in shape, having chamfered or rounded corners 19.
- the receptacle 16 has its exterior 21 and interior 22 both cylindrical, i.e. circular in cross-section, the interior face 22 being unthreaded.
- the axial lengths of the body 14 and receptacle 16 are substantially the same.
- the head 15 is circular in exterior shape and relatively thin in the axial direction.
- the wall thickness of the body 14 is similar to the thickness of the head flange 15, whereas the wall thickness of the receptacle 16 is substantially greater than these.
- the diameter of the exterior 21 of the receptacle 16 is slightly smaller than the minimum diameter (i.e. the distance between opposed faces) of the interior 18 of the body, so that the exterior 21 of the receptacle 16 is a sliding fit in the interior 18 of the body 14 of an identical insert 11.
- the second form of insert illustrated in Figs. 2A, 2B, 3 and 5 is a modification of that first described with reference to Figs. 1A, 1B, 3 and 4, like parts being indicated by like numerals.
- the second form of insert 23 is identical, except that the exterior 24 of its receptacle 25 is of substantially square cross-section, with rounded corners 26. Again, the exterior 24 of the receptacle 25 of the insert is a sliding fit within the interior of the body 14 of an identical insert.
- FIGs 6 to 10 illustrate the installation sequence of the first form of insert 11 shown in Figs. 1A and 1B.
- the installation tool 26 is generally similar to those well-known for installing blind breakstem rivets, except that it has a re-usable mandrel 27 comprising an elongated stem 28 with gripping grooves 29 adjacent one end and an enlarged head 31 at the other end, including a taper 32 by which it merges into the stem 28.
- the diameter of the mandrel stem 28 is a sliding fit within the interior 22 of the receptacle 16 of the insert.
- the tool has a tubular nosepiece 33 ending in an annular anvil face 34.
- the tool Inside the nose piece 33 is a jaw-carrier 35 holding two jaws 36 which engage the gripping grooves 29 of the mandrel.
- the jaw carrier provides a tapered collet which urges the jaws together.
- the tool also includes a reciprocable support tube 37, the exterior of which is of the same diameter as the exterior of the insert receptacle 16, so that it is a sliding fit within the body 14 of the insert 11, and its interior is a sliding fit on the mandrel stem 28.
- the tool includes means (such as pneumatic, hydro-pneumatic or electric drive), not shown, for retracting the jaw carrier 35 with respect to the nosepiece 33.
- the mandrel In order to use the tool, the mandrel is removed from the tool by pushing it inwards to open the jaws, and then withdrawing it.
- An insert is assembled over the tail end of the mandrel, receptacle end first, until the end of the receptacle contacts the bottom of the taper 32 of the mandrel head, (see Fig.6).
- the mandrel tail is then inserted through the support tube 37, to engage within the jaws 36.
- the relative dimensions of the insert and tool are such that the insert head 15 is then in contact with the tool anvil 34 (Fig.6).
- the tool 26 In order to instal the insert 11 in an appropriately dimensioned pre-formed square hole 38 in a sheet-like workpiece 39, the tool 26 is manipulated by its operator (if the tool is hand-held, or it could be guided and advanced mechanically) so that the insert 11 is fed into the hole 38 until the insert head 15 is in contact with the workpiece 39 against which it is supported by the anvil 34. As illustrated in Fig. 6, the majority of the length of the body 14 of the insert protrudes beyond the workpiece.
- the tool is then activated so that its drive retracts the jaw carrier 35 within the nosepiece 33, pulling the mandrel head 31 towards the anvil 34.
- the axial compression thus exerted on the insert causes it to deform progressively in two ways.:
- the mandrel head taper 32 and full diameter portion 31 progressively radially expand the receptacle 16 and enter it axially, and the body 14 progressively collapses axially by outward radial expansion.
- the progressive stages are illustrated in Figs. 7 to 10.
- the body 14 of the insert buckles outwardly (Fig.7), which buckling is promoted by the shape of the junction between the body 14 and the receptacle 16. Eventually the buckling is sufficient to form a folded flange 41 (Fig.8), the workpiece 39 being gripped between the insert head 15 and the flange 41.
- the interior of the body 14 of the insert is supported by the support tube 37, so that the collapse occurs symetrically, thus providing accurate positioning of the receptacle with respect to the hole and perpendicular to the plane of the workpiece.
- the support tube is withdrawn from the axially collapsing body, first by urging from the body 14 and later by the mandrel head taper 32.
- the mandrel head advances through the receptacle 16 of the insert, it does two things. Firstly, it radially expands the part of the body 14 which is adjacent the head 15 and inside the hole 38 in the workpiece 39 into tight contact with the wall of the hole, thus increasing the security of installation of the insert in the workpiece. This also allows for a substantial tolerance in the size of the hole 38 preformed in the workpiece. Secondly, it forms the enlarged inside wall of the bore of the receptacle to an accurately known diameter, thus dimensioning the bore of the installed receptacle with a close tolerance to the optimum diameter to receive the intended self-tap screw, and therefore good control of the tolerance needed to drive the screw.
- Fig. 10 shows the insert installed in the workpiece after the tool has been removed.
- the mandrel 28 can be re-used for installing a large number of inserts, one at a time.
- a much more efficient method is to use a repetition system, in which a number of inserts can be loaded on the stem of a long mandrel to form a column of inserts which are advanced, as each insert is placed in turn.
- a suitable tool for doing this is illustrated in Figs. 11 and 12, in which Fig. 11 is an axial longitudinal section through the nosepiece end of the tool and Fig.12 is a cross-section on the line XII-XII of Fig.11. Like parts to those in the tool of Fig 6 are shown by like numbers.
- the tool of this example is substantially identical with the well-known tools used for repetition installation of the tubular blind rivets which are well-known and widely available in many countries under the Registered Trade Marks CHOBERT and BRIV. The construction and operation of the tool need not be here further described.
- the fact that the exterior of the receptacle of each insert is a sliding fit within the body part of an identical insert provides two advantages. Firstly, this allows telescoping of the inserts on the mandrel, with the exterior of the receptacle 25 of each insert fitting within the body 14 of the insert next in front. This increases the number of inserts which can be pre-loaded on the long stem 42 of the repetition mandrel 43, the head 44 of which is drawn through the leading insert 45.
- the column of inserts is resiliently urged forwards along the reciprocable mandrel. When the mandrel is retracted, the head of the leading insert abuts against the nosepiece anvil 34, and the insert is deformed and installed in the same way as previously described.
- each insert body is supported and positioned by the receptacle of the next insert, instead of by the supporting tube 37 of the single-use tool described above.
- Support for the body portion of the last insert of the column is provided by a suitable tubular projection on the pusher or spring-follower (not shown) which urges the inserts forward.
- the nosejaws 46 of the tool have interior faces which together form a square cross-section 47, corresponding to the square cross-section of the exterior of the insert body 14.
- the insert held by the nosepiece jaws 46 is rotationally orientated by the jaws, and the leading insert which is about to be installed is rotationally orientated by the receptacle of the aforementioned insert behind it within its body.
- Figs. 13 to 18 are generally similar to Figs. 6 to 10, but show in smaller increments the progress of deformation of the insert, the supporting receptacle of the next insert being omitted for clarity of illustration, and the nosejaws being shown in simplified form.
- Fig. 13 shows the relationship between the insert 45, the mandrel 43 and the nosetip anvil 34 of the placing tool at the commencement of the installation operation when the pulling force applied to the mandrel is low.
- the mandrel head 44 begins to deform and radially expand the receptacle 25 of the insert.
- the body 14 "bulbs" whilst axially contracting. Because the exterior diameter of the receptacle 25 at its junction with the body 14 is of a smaller diameter than the exterior diameter of the body, the line of force as it reacts through the body wall is offset. This provides a moment of force which acts to urge the body wall to expand radially outwards as shown in Fig. 14.
- the mandrel head 44 is drawn through the bore of the receptacle 25, expanding it and further deforming the base of the body 14 into a conical shape.
- the outer surface of the cone is pressed hard against the deformed inner wall of the body , as shown in Fig. 17, which in turn forces the outer deformed surface of the body hard against the workpiece.
- This has two purposes; it provides an installed insert which is very securely fixed to the workpiece with no risk of looseness or rattling, and secondly, where there is a large variation in the hole size, it always ensures that the expansion of the body of the insert is sufficient to fill the hole in the workpiece.
- Fig. 18 The final installed configuration of the insert is shown in Fig. 18. This shows that the conical deformed shape of the base of the body is positioned relative to the body wall in such a way that it supports the body wall and therefore adds strength to the installed insert. It also means that the receptacle portion is held rigid in an axial and radial direction relative to the head of the insert.
- Figs. 19 & 20 illustrate the insertion of a self-tap screw 48 into the installed receptacle 25 to attach a component 49 to the workpiece.
- the action of tightening the self-tapping screw 48 will further force the conical face against the interior face of the deformed body to maintain the rigidity of the insert.
- the insert is made of low carbon steel.
- the thickness of the wall of the body portion 14 would be 0.4 mm.
- non-circular shapes need not be square but could be, for example, hexagonal.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Insertion Pins And Rivets (AREA)
- Joining Of Building Structures In Genera (AREA)
- Automatic Assembly (AREA)
Description
Secondly, it forms the enlarged inside wall of the bore of the receptacle to an accurately known diameter, thus dimensioning the bore of the installed receptacle with a close tolerance to the optimum diameter to receive the intended self-tap screw, and therefore good control of the tolerance needed to drive the screw. Fig. 10 shows the insert installed in the workpiece after the tool has been removed.
Claims (15)
- An insert (11) for installation in a relatively thin or weak workpiece (39, 49) to provide an anchor for a self-tapping screw (48) or the like, which insert (11) is in the form of an integral metal structure which comprises:-a body portion (14);a head portion (15) located at or near one end of the body portion (14) and extending radially therefrom;a receptacle portion (16) located at the other end of the body portion (14) remote from the head portion (15); anda through bore extending throughout the head (15), body (14) and receptacle (16) portions;in which the exterior cross-sectional shape and dimensions of the receptacle portion (16), and the interior cross-sectional shape and dimensions of the body portion (14) are respectively such that the body portion (14) is deformable, when the receptacle portion (16) is drawn towards the head portion (15), to secure the insert in a suitable hole in a workpiece (39, 49) through which the receptacle and body portions (16, 14) have been inserted so that the head portion (15) is adjacent the workpiece (39, 49) and a substantial length of the body portion (14) protrudes beyond the workpiece (39, 49); characterised bythe interior bore (13) of the receptacle portion (16) being substantially unthreaded for the reception of a self-tapping screw or the like; and the exterior dimension of the receptacle portion (16) at its junction with the body portion (14) being of smaller dimension than the exterior dimension of the body (14) such that, when the receptacle portion (16) is drawn towards the head portion (15) the body portion (14) wall is caused to expand radially outwards and the part of the body portion (14) nearer the receptacle portion (16) enters inside the part of the body portion (14) nearer the head (15) thereby to enhance the engagement of the deformed body portion (14) with the workpiece (39, 49).
- An insert (11) for installation in a relatively thin or weak workpiece (39, 43) to provide an anchor for a self-tapping screw (48) or the like, which insert (11) is in the form of an integral metal structure which comprises:-a body portion (14);a head portion (15) located at or near one end of the body portion (14) and extending radially therefrom:a receptacle portion (16) located at the other end of the body portion (14) remote from the head portion (15); anda through bore (13) extending throughout the head, body and receptacle portions (15, 14, 16);the body portion (14) being deformable, when the receptacle portion (16) is drawn towards the head portion (15), to secure the insert (11) in a suitable hole in a workpiece (39, 49) through which the receptacle and body portions (16, 14) have been inserted so that the head portion (14) is adjacent the workpiece (39, 49) and a substantial (15) length of the body portion protrudes beyond the workpiece (39,49), characterised bythe interior bore (13) of the receptacle portion (16) being substantially unthreaded for the reception of a self-tapping screw (48) of the like; andthe exterior cross-sectional shape and dimensions of the receptacle portion (16) being smaller than the interior cross-sectional shape and dimensions of the body portion (14), such that the receptacle portion (16) of the insert is a sliding fit within the body portion (14) of an identical insert (11).
- An insert as claimed both in claim 1 and claim 2.
- An insert as claimed in claim 2 or claim 3 , in which both the exterior cross-sectional shape of the receptacle portion (16) and the interior cross-sectional shape of the body portion (14) are substantially non-circular.
- An insert as claimed in claim 2 or claim 3, in which the interior cross-sectional shape of the body portion (14) is substantially non-circular and the exterior cross-sectional shape of the receptacle portion (16) is substantially circular.
- An insert as claimed in claim 4, in which the exterior cross-sectional shape of the body portion (14) of the insert is also substantially non-circular.
- A plurality of inserts as claimed in claim 2 or claim 3. in combination with a pull-through mandrel for installing the inserts in succession, the mandrel comprising an elongated stem and an enlarged head, the plurality of inserts being loaded on the stem with the receptacle portion (16) of each insert facing towards the mandrel head and received within the body portion (14) of the adjacent insert.
- The combination as claimed in claim 7, in which both the exterior cross-sectional shape of the receptacle portion (16), and the interior cross-sectional shape of the body portion (14), of each insert are substantially non-circular.
- An insert installation tool for installing a plurality of inserts each of which is as claimed in claim 4, which installation tool comprises the combination of a plurality of such inserts together with a pull-through mandrel, as claimed in claim 8, in which the exterior cross-sectional shape of the body portion (14) of each insert is also substantially non-circular, the installation tool further comprising means for engaging with the non-circular exterior of the body portion of an insert behind the leading insert which is about to be installed, thereby to orientate the engaged insert axially about the mandrel and thereby orientate the leading insert which is about to be installed.
- A method of installing an insert in a workpiece, which insert is according to claim 2 or claim 3, which method comprises:-inserting the receptacle and body portions (16, 14) of the insert through a suitable hole in the workpiece so that a substantial length of the body portion protrudes beyond the workpiece;providing a mandrel having an elongated stem which extends through the bore of the insert, the mandrel comprising a stem which is a sliding fit in the interior of the receptacle portion (16) and a radially enlarged head beyond the receptacle portion (16);providing a tubular interior supporting member circumferentially outside the mandrel stem and inside the body portion of the insert within which is it a sliding fit;supporting the head portion (15) of the insert against the workpiece;withdrawing the mandrel with respect to the head portion (15) of the insert so that it engages the receptacle portion (16) of the insert and applies an axial force to it which causes the body portion (14) to collapse axially while it is supported internally by the tubular supporting member.
- A method as claimed in claim 10, in which the tubular supporting member forms part of an installation tool and is re-usable on successively installed inserts (11).
- A method as claimed in claim 10, in which the tubular supporting member is provided by the receptacle portion (16) of a further insert through which the mandrel also extends.
- A method as claimed in claim 10, in which the receptacle portion (16) of the insert is drawn into the body portion (14) of the insert, the interior supporting member being progressively withdrawn as the receptacle portion (16) advances thereby to assist in its deformation and engagement with the workpiece.
- A method as claimed in claim 13, in which the mandrel head is drawn completely through the receptacle portion (16) of the insert, thereby to form the bore through the receptacle portion to a predetermined diameter.
- An insert, or the combination of a plurality of inserts (11) with a mandrel, or an insert installation tool, or a method of installing an insert, as claimed in any of the preceding claims, in which each substantially non-circular shape is substantially square.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9929560 | 1999-12-14 | ||
GB9929560A GB2358053B (en) | 1999-12-14 | 1999-12-14 | Insert and method of installation thereof |
PCT/GB2000/004769 WO2001044674A1 (en) | 1999-12-14 | 2000-12-13 | Insert and method of installation thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1238198A1 EP1238198A1 (en) | 2002-09-11 |
EP1238198B1 true EP1238198B1 (en) | 2004-05-12 |
Family
ID=10866307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00981483A Expired - Lifetime EP1238198B1 (en) | 1999-12-14 | 2000-12-13 | Insert and method of installation thereof |
Country Status (11)
Country | Link |
---|---|
US (1) | US6826820B2 (en) |
EP (1) | EP1238198B1 (en) |
JP (1) | JP3957146B2 (en) |
KR (1) | KR100799448B1 (en) |
CN (1) | CN1181269C (en) |
AU (1) | AU770215B2 (en) |
CA (1) | CA2394371C (en) |
DE (1) | DE60010748T2 (en) |
ES (1) | ES2220575T3 (en) |
GB (1) | GB2358053B (en) |
WO (1) | WO2001044674A1 (en) |
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-
1999
- 1999-12-14 GB GB9929560A patent/GB2358053B/en not_active Expired - Lifetime
-
2000
- 2000-12-13 AU AU18718/01A patent/AU770215B2/en not_active Ceased
- 2000-12-13 US US10/149,991 patent/US6826820B2/en not_active Expired - Lifetime
- 2000-12-13 DE DE60010748T patent/DE60010748T2/en not_active Expired - Lifetime
- 2000-12-13 JP JP2001545734A patent/JP3957146B2/en not_active Expired - Lifetime
- 2000-12-13 WO PCT/GB2000/004769 patent/WO2001044674A1/en active IP Right Grant
- 2000-12-13 CA CA002394371A patent/CA2394371C/en not_active Expired - Fee Related
- 2000-12-13 EP EP00981483A patent/EP1238198B1/en not_active Expired - Lifetime
- 2000-12-13 KR KR1020027006944A patent/KR100799448B1/en not_active IP Right Cessation
- 2000-12-13 ES ES00981483T patent/ES2220575T3/en not_active Expired - Lifetime
- 2000-12-13 CN CNB008170452A patent/CN1181269C/en not_active Expired - Lifetime
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CN1181269C (en) | 2004-12-22 |
CA2394371A1 (en) | 2001-06-21 |
DE60010748D1 (en) | 2004-06-17 |
DE60010748T2 (en) | 2005-05-12 |
GB2358053A (en) | 2001-07-11 |
JP3957146B2 (en) | 2007-08-15 |
JP2003517547A (en) | 2003-05-27 |
KR100799448B1 (en) | 2008-01-30 |
US6826820B2 (en) | 2004-12-07 |
CN1409803A (en) | 2003-04-09 |
AU770215B2 (en) | 2004-02-19 |
EP1238198A1 (en) | 2002-09-11 |
WO2001044674A1 (en) | 2001-06-21 |
CA2394371C (en) | 2008-04-29 |
GB2358053B (en) | 2003-11-19 |
KR20020074152A (en) | 2002-09-28 |
US20030091406A1 (en) | 2003-05-15 |
AU1871801A (en) | 2001-06-25 |
GB9929560D0 (en) | 2000-02-09 |
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